Which ‘Today’ legend will return to the show on Monday?

A “Today” producer tweeted on Saturday that “a legend” is returning to the NBC morning show on Monday. Here are some guesses that my followers tweeted:
@JimMaiella: “Jane Pauley to trump Katie, has to be. Awesome.”
@EdMurrieta: “J. Fred Muggs! Please say J. Fred Muggs.”
@JohnLPitts: “Zombie Dave Garroway?”
@SteveDodrill: “BRYANT GUMBLE??” [sic]
Your guess? Put it in comments.

My guess? Between this “legend” tease and Sarah Palin’s co-hosting of “Today” on Tuesday, NBC is freaking out over Katie Couric’s week-long hosting gig on ABC.
An epic battle of the “network bores”